The Free On-line Dictionary of Computing (30 December 2018):

Communications of the ACM
CACM

    (CACM) A monthly publication by the Association
   for Computing Machinery sent to all members.  CACM is an
   influential publication that keeps computer science
   professionals up to date on developments.  Each issue includes
   articles, case studies, practitioner oriented pieces, regular
   columns, commentary, departments, the ACM Forum, technical
   correspondence and advertisements.

   (http://acm.org/cacm/).

   (1995-01-18)